/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-22 00:22:43,537 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-22 00:22:43,540 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-22 00:22:43,592 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-22 00:22:43,702 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-22 00:22:43,726 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-22 00:22:43,727 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-22 00:22:43,731 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-22 00:22:43,731 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-22 00:22:43,732 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-22 00:22:43,732 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-22 00:22:43,732 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-22 00:22:43,732 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-22 00:22:43,733 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-22 00:22:43,733 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-22 00:22:43,734 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-22 00:22:43,734 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-22 00:22:43,735 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-22 00:22:43,735 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-22 00:22:43,735 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-22 00:22:43,736 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-22 00:22:43,736 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-22 00:22:43,736 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-22 00:22:43,737 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 00:22:43,737 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-22 00:22:43,737 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-22 00:22:43,737 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-22 00:22:43,738 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2021-02-22 00:22:44,195 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-22 00:22:44,244 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-22 00:22:44,248 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-22 00:22:44,250 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-22 00:22:44,250 INFO L275 PluginConnector]: CDTParser initialized [2021-02-22 00:22:44,251 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+lhb-reducer.c [2021-02-22 00:22:44,346 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ad5960fe/2062e03007294b589d0b8a556d1db153/FLAG72c14e1f8 [2021-02-22 00:22:45,077 INFO L306 CDTParser]: Found 1 translation units. [2021-02-22 00:22:45,078 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+lhb-reducer.c [2021-02-22 00:22:45,089 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ad5960fe/2062e03007294b589d0b8a556d1db153/FLAG72c14e1f8 [2021-02-22 00:22:45,395 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ad5960fe/2062e03007294b589d0b8a556d1db153 [2021-02-22 00:22:45,399 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-22 00:22:45,415 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-22 00:22:45,422 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-22 00:22:45,423 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-22 00:22:45,428 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-22 00:22:45,429 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 12:22:45" (1/1) ... [2021-02-22 00:22:45,431 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31eda58d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:22:45, skipping insertion in model container [2021-02-22 00:22:45,431 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 12:22:45" (1/1) ... [2021-02-22 00:22:45,441 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-22 00:22:45,473 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-22 00:22:45,732 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+lhb-reducer.c[2239,2252] [2021-02-22 00:22:45,755 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 00:22:45,771 INFO L203 MainTranslator]: Completed pre-run [2021-02-22 00:22:45,795 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+lhb-reducer.c[2239,2252] [2021-02-22 00:22:45,799 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 00:22:45,817 INFO L208 MainTranslator]: Completed translation [2021-02-22 00:22:45,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:22:45 WrapperNode [2021-02-22 00:22:45,818 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-22 00:22:45,819 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-22 00:22:45,819 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-22 00:22:45,819 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-22 00:22:45,834 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:22:45" (1/1) ... [2021-02-22 00:22:45,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:22:45" (1/1) ... [2021-02-22 00:22:45,844 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:22:45" (1/1) ... [2021-02-22 00:22:45,845 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:22:45" (1/1) ... [2021-02-22 00:22:45,852 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:22:45" (1/1) ... [2021-02-22 00:22:45,856 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:22:45" (1/1) ... [2021-02-22 00:22:45,858 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:22:45" (1/1) ... [2021-02-22 00:22:45,861 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-22 00:22:45,862 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-22 00:22:45,862 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-22 00:22:45,862 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-22 00:22:45,864 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:22:45" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 00:22:45,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-22 00:22:45,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-22 00:22:45,981 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-22 00:22:45,981 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-22 00:22:45,982 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-22 00:22:45,982 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-22 00:22:45,982 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-22 00:22:45,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-22 00:22:45,983 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-22 00:22:45,983 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-22 00:22:45,983 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-22 00:22:45,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-22 00:22:45,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-22 00:22:45,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-22 00:22:45,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-22 00:22:45,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-22 00:22:45,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-22 00:22:46,640 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-22 00:22:46,640 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-22 00:22:46,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 12:22:46 BoogieIcfgContainer [2021-02-22 00:22:46,642 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-22 00:22:46,645 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-22 00:22:46,645 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-22 00:22:46,648 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-22 00:22:46,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.02 12:22:45" (1/3) ... [2021-02-22 00:22:46,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6170cffb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 12:22:46, skipping insertion in model container [2021-02-22 00:22:46,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:22:45" (2/3) ... [2021-02-22 00:22:46,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6170cffb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 12:22:46, skipping insertion in model container [2021-02-22 00:22:46,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 12:22:46" (3/3) ... [2021-02-22 00:22:46,652 INFO L111 eAbstractionObserver]: Analyzing ICFG mod3.c.v+lhb-reducer.c [2021-02-22 00:22:46,659 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-22 00:22:46,664 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-22 00:22:46,684 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-22 00:22:46,710 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-22 00:22:46,710 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-22 00:22:46,711 INFO L378 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2021-02-22 00:22:46,711 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-22 00:22:46,711 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-22 00:22:46,711 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-22 00:22:46,711 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-22 00:22:46,711 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-22 00:22:46,733 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states. [2021-02-22 00:22:46,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-02-22 00:22:46,745 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 00:22:46,746 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 00:22:46,747 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 00:22:46,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 00:22:46,754 INFO L82 PathProgramCache]: Analyzing trace with hash -1618724180, now seen corresponding path program 1 times [2021-02-22 00:22:46,765 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 00:22:46,765 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1433103447] [2021-02-22 00:22:46,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 00:22:48,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2021-02-22 00:22:48,985 WARN L167 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2021-02-22 00:22:48,985 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-22 00:22:48,990 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-22 00:22:49,008 WARN L227 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2021-02-22 00:22:49,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.02 12:22:49 BoogieIcfgContainer [2021-02-22 00:22:49,008 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-22 00:22:49,011 INFO L168 Benchmark]: Toolchain (without parser) took 3608.74 ms. Allocated memory is still 173.0 MB. Free memory was 148.7 MB in the beginning and 130.3 MB in the end (delta: 18.3 MB). Peak memory consumption was 18.7 MB. Max. memory is 8.0 GB. [2021-02-22 00:22:49,012 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 173.0 MB. Free memory was 145.6 MB in the beginning and 145.5 MB in the end (delta: 84.1 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-22 00:22:49,014 INFO L168 Benchmark]: CACSL2BoogieTranslator took 395.95 ms. Allocated memory is still 173.0 MB. Free memory was 147.5 MB in the beginning and 137.0 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-02-22 00:22:49,015 INFO L168 Benchmark]: Boogie Preprocessor took 42.17 ms. Allocated memory is still 173.0 MB. Free memory was 137.0 MB in the beginning and 135.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-22 00:22:49,016 INFO L168 Benchmark]: RCFGBuilder took 780.47 ms. Allocated memory is still 173.0 MB. Free memory was 135.5 MB in the beginning and 145.0 MB in the end (delta: -9.5 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2021-02-22 00:22:49,017 INFO L168 Benchmark]: TraceAbstraction took 2364.02 ms. Allocated memory is still 173.0 MB. Free memory was 144.5 MB in the beginning and 130.3 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-02-22 00:22:49,021 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 173.0 MB. Free memory was 145.6 MB in the beginning and 145.5 MB in the end (delta: 84.1 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 395.95 ms. Allocated memory is still 173.0 MB. Free memory was 147.5 MB in the beginning and 137.0 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 42.17 ms. Allocated memory is still 173.0 MB. Free memory was 137.0 MB in the beginning and 135.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 780.47 ms. Allocated memory is still 173.0 MB. Free memory was 135.5 MB in the beginning and 145.0 MB in the end (delta: -9.5 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2364.02 ms. Allocated memory is still 173.0 MB. Free memory was 144.5 MB in the beginning and 130.3 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 99]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L1] int __return_main; [L8] int __tmp_112_0; [L9] int __tmp_94_0; [L10] int __tmp_93_0; [L11] int __tmp_88_0; [L12] int __tmp_88_1; [L13] int __tmp_91_0; [L14] int __tmp_91_1; [L15] int __return_121; [L18] unsigned int main__x; [L19] unsigned int main__y = 1; [L21] int main____CPAchecker_TMP_0; [L22] main____CPAchecker_TMP_0 = __VERIFIER_nondet_int() [L23] COND TRUE !(main____CPAchecker_TMP_0 == 0) [L25] COND TRUE (main__x % 3) == 1 [L27] main__x = main__x + 2 [L28] main__y = 0 [L29] __tmp_112_0 = main____CPAchecker_TMP_0 [L31] main____CPAchecker_TMP_0 = __tmp_112_0 [L32] __tmp_94_0 = main____CPAchecker_TMP_0 [L34] main____CPAchecker_TMP_0 = __tmp_94_0 [L35] int main____CPAchecker_TMP_0; [L36] main____CPAchecker_TMP_0 = __VERIFIER_nondet_int() [L37] COND FALSE !(!(main____CPAchecker_TMP_0 == 0)) [L90] COND TRUE main__y == 0 [L93] int __tmp_1; [L94] __tmp_1 = (main__x % 3) == 0 [L95] int __VERIFIER_assert__cond; [L96] __VERIFIER_assert__cond = __tmp_1 [L97] COND TRUE __VERIFIER_assert__cond == 0 [L99] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 104 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 2.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=101occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...